Eragrostis aspera (Jacq.) Nees

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Synonyms: Eragrostis buchananii Gand.
Eragrostis quintasii Gand.
Common names:
Frequency:
Status: Native
Description:
Caespitose annual; culms up to 50(100) cm tall, usually erect, unbranched or rarely branched, glabrous at the nodes, eglandular; leaf sheaths gland-dotted on the nerves (especially on the midnerve); ligule a line of hairs; leaf laminas 5–20(30) cm × 2–4(6) mm, linear, flat, glabrous, gland-dotted on the nerves beneath.Panicle 11–30(70) cm long, ovate-elliptic, very effuse, the spikelets evenly distributed on long fine pedicels 5–25 mm long, the primary branches ascending at 45°, pseudowhorled or not, terminating in a fertile spikelet, bearded in the axils, eglandular.Spikelets 3–10 × 1–1.5(1.8) mm, oblong to linear, lightly laterally compressed, 4–22-flowered, the florets disarticulating from the apex downwards, the rhachilla fragile; glumes subequal, (0.7)1–1.5 mm long, the inferior reaching to about the middle of the adjacent lemma, the superior relatively shorter, lightly keeled, narrowly ovate to narrowly elliptic-oblong in profile, scabrid on the keel, obtuse to subacute at the apex; lemmas (1.2)1.4–1.8 mm long, lightly keeled, narrowly elliptic-oblong in profile, membranous with distinct lateral nerves, scarcely diverging from the rhachilla, those in opposite rows imbricate and concealing the rhachilla, pallid or often tinged with purple, smooth and glabrous, obtuse to truncate at the apex; palea glabrous on the flanks, the keels slender, wingless, scabrid; anthers 3, 0.2–0.6 mm long.Caryopsis c. 0.5 mm across, subrotund.
Type location:
Notes: Caespitose annual
Derivation of specific name: aspera: rough
Habitat: A widespread weed of cultivated and disturbed places, in sandveld, short grassland and dambo margins, in Kalahari Sands, rocky hillsides, and in moist sandy depressions
Altitude range: 180 - 1680 m
Flowering time:
Worldwide distribution: tropical and South Africa through Arabia to southern India and the Mascarene Islands
Zambian distribution (Flora Zambesiaca): B,N,W,C,E,S
Zambian distribution (Provinces): Cb,N,Lk
Growth form(s):
Endemic status:
Red data list status:
Insects associated with this species:
Spot characters: Display spot characters for this species
Literature:

Chapano, C. & Mamuto, M. (2003). Plants of the Chimanimani District National Herbarium and Botanic Garden, Zimbabwe Page 24.

Chapano, C. & Mugarisanwa, N.H. (2003). Plants of the Matobo District National Herbarium and Botanic Garden, Zimbabwe Page 15.

Cope, T.A. (1999). Poaceae Flora Zambesiaca 10(2) Pages 94 - 96. (Includes a picture).

Heath, A. & Heath, R. (2009). Field Guide to the Plants of Northern Botswana including the Okavango Delta Kew Publishing Page 468. (Includes a picture).

Jackson, G. & Wiehe, P.O. (1958). An Annotated Check List of Nyasaland Grasses The Government Printer, Zomba, Nyasaland Page 38.

Mapaura, A. & Timberlake, J. (eds) (2004). A checklist of Zimbabwean vascular plants Southern African Botanical Diversity Network Report No. 33 Sabonet, Pretoria and Harare Page 103.

Poilecot, P. (2007). Eragrostis species of Zimbabwe Éditions Quae,Versailles, France Pages 108 - 109. (Includes a picture).

Roodt, V. (2015). Grasses & Grazers of Botswana and the surrounding savanna Struik Nature, South Africa Pages 102 - 103. (Includes a picture).

Setshogo, M.P. (2005). Preliminary checklist of the plants of Botswana. Sabonet Report no. 37. Sabonet, Pretoria and Gaborone Page 136.

Timberlake, J.R. & Childes, S.L. (2004). Biodiversity of the Four Corners Area: Technical Reviews Volume Two (Chapter 5-15) Appendix 5-1: Plant Checklist Occasional Publications in Biodiversity 15 Page 189.

Other sources of information about Eragrostis aspera:

Our websites:

Flora of Botswana: Eragrostis aspera
Flora of Caprivi: Eragrostis aspera
Flora of Malawi: Eragrostis aspera
Flora of Mozambique: Eragrostis aspera
Flora of Zimbabwe: Eragrostis aspera

External websites:

African Plants: A Photo Guide (Senckenberg): Eragrostis aspera
African Plant Database: Eragrostis aspera
BHL (Biodiversity Heritage Library): Eragrostis aspera
EOL (Encyclopedia of Life): Eragrostis aspera
ePIC (electronic Plant Information Center): Eragrostis aspera
Flora Zambesiaca web site: Eragrostis aspera
GBIF (Global Biodiversity Information Facility): Eragrostis aspera
Google: Web - Images - Scholar
GRIN (Germplasm Resources Information Network): Eragrostis aspera
iNaturalist: Eragrostis aspera
IPNI (International Plant Names Index): Eragrostis aspera
JSTOR Plant Science: Eragrostis aspera
Kew Herbarium catalogue: Eragrostis aspera
Kew Monocotyledon checklist: Eragrostis aspera
Mansfeld World Database of Agricultural and Horticultural Crops: Eragrostis aspera
Plants of the World Online: Eragrostis aspera
Tropicos: Eragrostis aspera
Wikipedia: Eragrostis aspera


Copyright: Mike Bingham, Annette Willemen, Bart Wursten, Petra Ballings and Mark Hyde, 2011-21

Bingham, M.G., Willemen, A., Wursten, B.T., Ballings, P. and Hyde, M.A. (2021). Flora of Zambia: Species information: Eragrostis aspera.
https://www.zambiaflora.com/speciesdata/species.php?species_id=104650, retrieved 18 April 2021

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